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AT49F040

4-Megabit 512K x 8 5-volt Only CMOS Flash Memory

Partnumber Manufacturer Quantity Availability
AT49F040 64600 In Stock

Description and Introduction

4-Megabit 512K x 8 5-volt Only CMOS Flash Memory The AT49F040 is a 4-megabit (512K x 8) Flash memory chip manufactured by Atmel (now part of Microchip Technology). Below are its key specifications:  

- **Memory Organization**: 512K x 8 bits  
- **Single Voltage Operation**: 5V ± 10%  
- **Access Time**: 70 ns (max)  
- **Sector Architecture**:  
  - Eight 64K-byte sectors  
  - Any sector can be individually erased  
- **Programming Voltage**: 5V (no external high voltage required)  
- **Fast Programming Time**: 10 µs per byte (typical)  
- **Endurance**: 10,000 write/erase cycles (min) per sector  
- **Data Retention**: 10 years (min)  
- **Low Power Consumption**:  
  - Active Read Current: 30 mA (typical)  
  - Standby Current: 100 µA (typical)  
- **Package Options**: 32-lead PLCC, 32-lead TSOP  
- **Interface**: Parallel (byte-wide)  
- **Operating Temperature Range**: Commercial (0°C to +70°C) or Industrial (-40°C to +85°C)  
- **Additional Features**:  
  - Hardware and software data protection  
  - Toggle bit for program/erase detection  
  - Reset pin for device initialization  

The AT49F040 is designed for applications requiring non-volatile, high-speed, and low-power Flash memory storage.

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